Updating DBCombo's with NoteBook in Delphi 1?

I am having real problems updating a DBLookupCombo when using a NoteBook
componant.  The problem occurs when you enter or use the Navigator.

The symtom is that I can't set the DisplayValue unless the current page
of the notebook is selected.  If I do this though then the screen flicks
when updating.

Any suggestions are welcome.

Email: R...@Swetenhams.Co.Uk